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2026-06-22 - 05:09
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Mon Jun 22, 2026 01:02:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4060992632,255cyclictest3610-21CPU1
4060992632,255cyclictest3610-21CPU1
4060992542,247cyclictest2456-21CPU1
4060992542,247cyclictest2456-21CPU1
4060992541,249cyclictest0-21swapper/122:40:071
4060992541,249cyclictest0-21swapper/122:40:071
4060992541,249cyclictest0-21swapper/122:40:061
4060992530,2cyclictest0-21swapper/123:18:131
4060992530,2cyclictest0-21swapper/123:18:131
4060992521,246cyclictest37257-21qemu-system-x8600:00:551
4060992521,246cyclictest37257-21qemu-system-x8600:00:541
4060992521,246cyclictest37257-21qemu-system-x8600:00:541
4060992501,245cyclictest0-21swapper/121:00:131
4060992501,245cyclictest0-21swapper/121:00:131
4060992451,241cyclictest0-21swapper/123:14:351
4060992451,241cyclictest0-21swapper/123:14:341
4060992441,240cyclictest0-21swapper/121:11:131
4060992441,240cyclictest0-21swapper/121:11:131
4060992441,240cyclictest0-21swapper/119:47:511
4060992441,240cyclictest0-21swapper/119:47:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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